Viscosimeter



D @m6613016 MRW, @Dh-12ml@ Wm.

application bled lluly l, 162'?. aerial lilo. 261,122.

'lhe present invention relates to a viscosimeter, comprising incombination: it cuplike container for the liquid to be tested and whichwill be preferably heated jby t means ol an electric heating resistancesurrounding said cup. rlhe bottom ol the Cup is provided with a nozzletormed with an internal valve-seat cooperating with a valve forming partof a tubular fitting containing' a 16 thermometer. 'lhe bulb of thelatter contacts with the liquid to be tested, by means oit slits oropenings provided in the h'tting; said htting with its thermometer isguided through the cover of the cup by means oit a suitable llt socket,having stop devices to maintain the valve in open position and allow theliow of the liquid through the said nozzle provided in the bottom.

The liquid flowing through the nozzle is i tu received in a graduatedtesting cup,`dis

posed' beneath the nozzle and whereoltl the lower limit graduation is.disposed at some distance trom the bottom.

rl. preferred embodiment of the invention all will be describedhereafter with reference to the accompanying drawing, wherein:

lEig. 1 is a ,vertical elevation, halt in section, oit a viscosimeter;

Figs. 2, 3. and d are respectively sectional ttt views on lines A R,lil-ll and C--D ot llig, 1.

A cylindrical cup-like container 1 has a bottom 3 and a cover 2, bothscrewed thereon; the bottom 3' is provided with a nozzle d allowing theliquid contained in the cup to How in a testing cup beneath. This nozzletorms internally a conical valve-seat tor the conical valve 16, whichterms the terminal part oit a tubular tting 17 containing thethermometerl. The tubular tting 17 is provided with slits or ports 15,to allow the dll liquid to enter in contact with the bulb 1l.

ol the thermometer, so that the exchange of heat can be readily ensured'lhe conical tt valve 16 is screwed in the threaded end 26 .ot thelitting 17.. 'lFhe liquid dowing through the' nozzle d is recuperated ina testing cup 5 lodged in the metallic casing 6 screwed to.-

' a/dange 25 ot the cupbottom 3. 'llhis testmetallic casing beingprovided with a suitable ,opening 9 lor observation. 'lhe time lolderving ot the liquid is measured by the number ot seconds that willlapse between the lillin ol the testing cup trom the graduation 6 totatnbered 7,

ing cup will be preferably made oit" glass, they 'llhe thermometer isprovided with asuperior iittlng 18, screwed to the interior .fitting 17by the'screw-thread 27. 'lhe htting 18 is provided with a slit 28allowing observation to of the graduation 19 ol the thermometer. '.lhetittings 18, 17 and the conical valve 16 have a common axis and, as thetitting 17 is guided in the soclret 29 of the cover 2, said axiscorresponds with that ot the nozzle d t5 and the conical seat '30. 'lhesummit of the conical valve 16 has an angle such that a partial rotationot the parts 18, 17 and 16, forming valve and valve stem, will realize atight closing and obturation of the nozzle. 7o

'llhe lugs 20 of the litting 17, after opening the valve, can rest uponshoulders` 21 oit the socket 29 and, in this way, the valve will rernainopen to allow the discharge ot the liquid. Guts 31 are of substantiallylarger openings 75 than the width of the lugs 20, so as to allow apartial rotation of the conical valve at the moment where it is forcedon its seat.

i The liquid is heated by means of an electric resistance 10 adaptedround' the cup 1 eo and maintained in position by means of a idange-likeextension of the cover 2; said heating resistance can be removed ifnecessary. A joint or sealing material 22 prevents the li uid to climbalong the thermometer 85 and selling oit same.

We claim:

1.. il. viscosimeter comprising in combination: a cup-lilre containerfor the liquid to be tested, means tor heating the liquid, a nozau zlein the bottom of the container, an internal valve seat in said nozzlecooperating with a valve forming part of a tubular fitting containing athermometer, the bulb oit which contacts withthe liquid to be tested,means at for opening and closing the valve and a graduated testing cupreceiving the liquid Howing through the nozzle. 2. A viscosimetercomprising a cylindrical metallic cup containing the liquid to betestroo ed, a .removable electric heating resistance v surroundin saidcup, a nozzle in the bottom screwed to t e c-up, a conical valve-seat insaid nozzleoooperating with an internal conical valve. formingtheterminal part of a tubular lot fitting, containing a thermometer thebulb otm wlnc 'ntacts withthe liquid b means ot slit'slfef A`ortsprovided in said tting, a guiding 'soc et lor-said htting in .the coveroli the cup, means tor maintaining the valve 11u in open position andagraduated testing cup riving the liquid dowi through the non zle andhaving its lower limit graduation at some distance from the bottom, saidtesting cup being disposed beneath the nozzle in a casing screwed to aliange of the cup bottom, substantially as described.

3.4 A viscosimeter comprising a cylindrical metallic cup containing theliquid to loe-tested, a removable electric heating resistancesurrounding said cup, a nozzle in the bottom screwed to the cup, aconical valve-seat in said nozzle cooperating wit-laan internal conicalValve forming the terminal part of a tubularV fitting containing a thmometer the bulb of which contacts with the liquid b means of slits orports provided in said tting, a guiding socket for said fitting in thecover of the cup, means for maintaining the valve lin open position anda graduated testing cup our names. A

JACQUES WOUDHUYSEN. GASTON ORY.

